ABSTRACT
This chapter briefly discusses the application, chemical properties and physical properties of methyl isobutyl ketone (MIBK). It presents detailed information on the air analysis and analysis of aqueous and nonaqueous samples of MIBK. MIBK is used as a solvent for gums, resins, oils, and waxes. It is soluble in most organic solvents, colorless liquid and flammable. During the analysis of aqueous and nonaqueous samples of MIBK, MIBK is purged out from the aqueous matrix under the He flow. MIBK is thermally desorbed out from the sorbent trap and backflushed with He onto a gas chromatography (GC) column for separation from other volatile compounds. During the air analysis of MIBK, air is drawn through a solid sorbent tube packed with coconut shell charcoal. Alternatively, air can also be drawn through an impinger solution containing 2 N HCl solution of 0.05" 2,4-dinitrophenylhydrazine (DNPH) reagent and isooctane.
